}

// withT swaps out the testing struct. This allows executing sub tests.
func (sim *Simulation) withT(t *testing.T) *Simulation {
	cpy := *sim
	cpy.t = t
	return &cpy
}

func (sim *Simulation) RunExpectations(es []Expect) {
	for _, e := range es {
		sim.t.Run(e.Name, func(t *testing.T) {
			sim.withT(t).Run(e.Call).Matches(t, e.Result)
		})
	}
}

	runTest := func(t *testing.T) {
		o.ConfigString = tt.config
		o.KubernetesObjectString = tt.kubeConfig
		s := xds.NewFakeDiscoveryServer(t, o)
		sim := simulation.NewSimulation(t, s, s.SetupProxy(proxy))
		sim.RunExpectations(tt.calls)
		if t.Failed() && debugMode {
			t.Log(xdstest.MapKeys(xdstest.ExtractClusters(sim.Clusters)))
			t.Log(xdstest.ExtractListenerNames(sim.Listeners))
			t.Log(xdstest.DumpList(t, sim.Listeners))